In 1989, the Royal Mint is commemorating the Tercentenary of the Bill of Rights and the Claim of Right with a special Limited Issue Bill and Claim of Rights Piedfort £2 Two Pound Silver Proof 2 Coin Set struck in solid .925 Sterling Silver.
The reverse of the Bill of Rights and Claim of Rights has been designed by John Lobbam, who in preparing his designs has used the symbols of the main participants in the event of 1689.
The Bill of Rights design features a parliamentary mace interlinked with the cypher of William and Mary, with St Edward's crown positioned above and the dates 1689 and 1989 below.
On the Claim of Rights reverse Mr Lobban has used the Crown of Scotland in place of St Edward's Crown.
The obverse of both coins features Raphael Maklouf's portrait of Queen Elizabeth II.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.
Piedforts are coins which have been specially struck on thicker than normal blanks.
As their name suggests they are closely associated with France, where from the twelfth century they were apparently issued by the Kings as presentation pieces.
In Britain the practise of striking piedforts is later and less frequent, but medieval and Tudor examples are known.